{"id":"C2004A00498","name":"Damage by Aircraft Act 1999","slug":"damage-by-aircraft-act-1999","collection":"act","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":"107 of 1999","makingDate":null,"administeringDepartment":null,"currentVersion":{"id":38551,"registerId":"commonwealth-C2004A00498-1775056474652","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"Short title","content":"#### 1 Short title\n\n  This Act may be cited as the Damage by Aircraft Act 1999.","sortOrder":0},{"sectionNumber":"2","sectionType":"section","heading":"Commencement","content":"#### 2 Commencement\n\n  (1) Subject to this section, this Act commences on a day to be fixed by Proclamation.\n  (2) The day fixed under subsection (1) must not be a day that occurs before the day on which Australia’s denunciation of the Convention on Damage caused by Foreign Aircraft to third Parties on the Surface takes effect.","sortOrder":1},{"sectionNumber":"3","sectionType":"section","heading":"Object of Act","content":"#### 3 Object of Act\n\n  The main object of this Act is to facilitate the recovery of damages for certain injury, loss, damage or destruction caused by aircraft, or by people, animals or things that are dropped, or that fall, from aircraft that are in flight.","sortOrder":2},{"sectionNumber":"4","sectionType":"section","heading":"Definitions","content":"#### 4 Definitions\n\n  In this Act, unless the contrary intention appears:\n\n> aircraft has the same meaning as in the Civil Aviation Act 1988, but does not include model aircraft.\n\n> Australian territory has the same meaning as in the Air Navigation Act 1920.\n\n> Commonwealth aircraft means an aircraft, other than a Defence Force aircraft, that is:\n\n    (a) in the possession or under the control of the Commonwealth or an authority of the Commonwealth; or\n    (b) being used wholly or principally for a purpose of the Commonwealth.\n\n> Defence Force aircraft means aircraft of any part of the Defence Force, including any aircraft commanded by a member of that Force in the course of duties as such a member.\n\n> in flight has the meaning given by section 5.\n\n> operator has the meaning given by section 6.","sortOrder":3},{"sectionNumber":"5","sectionType":"section","heading":"Meaning of in flight","content":"#### 5 Meaning of in flight\n\n  (1) For the purposes of this Act, an aircraft that is lighter than air is taken to be in flight from the moment when it becomes detached from the earth’s surface until the moment when it becomes again attached to the earth’s surface.\n  (2) For the purposes of this Act, a power‑driven aircraft that is heavier than air is taken to be in flight from the moment when power is applied for the purpose of take‑off until the moment when its landing run ends.\n  (3) For the purposes of this Act, an aircraft that is heavier than air but is not power‑driven is taken to be in flight from the moment when it becomes airborne (whether or not it is then attached to any other aircraft or machine) until the moment when its landing run ends.","sortOrder":4},{"sectionNumber":"6","sectionType":"section","heading":"Meaning of operator","content":"#### 6 Meaning of operator\n\n  (1) Subject to subsection (2), if a person uses an aircraft, the person is, for the purposes of this Act, taken to be the operator of the aircraft.\n  (2) If a person authorises the use of an aircraft but retains control of its navigation, then, for the purposes of this Act:\n    (a) the person who is authorised to use the aircraft is not taken to be the operator of the aircraft; and\n    (b) the person who retains control of its navigation is taken to be the operator of the aircraft.","sortOrder":5},{"sectionNumber":"7","sectionType":"section","heading":"Use of an aircraft by employees","content":"#### 7 Use of an aircraft by employees\n\n  If an employee of a person (the employer) uses an aircraft in the course of his or her employment (whether or not the employee is authorised to do so), then, for the purposes of this Act:\n    (a) the employee is not taken to use the aircraft; and\n    (b) the employer is taken to use the aircraft.","sortOrder":6},{"sectionNumber":"8","sectionType":"section","heading":"Act binds the Crown","content":"#### 8 Act binds the Crown\n\n  This Act binds the Crown in each of its capacities.","sortOrder":7},{"sectionNumber":"9","sectionType":"section","heading":"Application of Act","content":"#### 9 Application of Act\n\n  (1) This Act extends to each external Territory.\n  (2) This Act does not apply in relation to a Defence Force aircraft.\n  (3) This Act applies to acts, omissions, matters and things within Australian territory.\n  (4) Subject to subsection (2), this Act applies in relation to the following:\n    (a) Commonwealth aircraft;\n    (b) aircraft owned by a foreign corporation or a trading or financial corporation (within the meaning of paragraph 51(xx) of the Constitution);\n    (c) aircraft (including foreign aircraft) engaged in:\n    (i) international air navigation; or\n    (ii) air navigation in relation to trade and commerce with other countries and among the States; or\n    (iii) air navigation conducted by a foreign corporation or a trading or financial corporation (within the meaning of paragraph 51(xx) of the Constitution); or\n    (iv) air navigation to or from, or within, the Territories; or\n    (v) landing at, or taking off from, a place acquired by the Commonwealth for public purposes.","sortOrder":8},{"sectionNumber":"10","sectionType":"section","heading":"Liability for injury, loss etc.","content":"#### 10 Liability for injury, loss etc.\n\n  (1) This section applies if a person or property on, in or under land or water suffers personal injury, loss of life, material loss, damage or destruction caused by:\n    (a) an impact with an aircraft that is in flight, or that was in flight immediately before the impact happened; or\n    (b) an impact with part of an aircraft that was damaged or destroyed while in flight; or\n    (c) an impact with a person, animal or thing that dropped or fell from an aircraft in flight; or\n    (d) something that is a result of an impact of a kind mentioned in paragraph (a), (b) or (c).\n  (1A) However, this section does not apply in relation to a person who suffers mental injury caused by a thing covered by paragraph (1)(a), (b), (c) or (d) unless the person, or property owned by the person, suffers other personal injury, material loss, damage or destruction caused by such a thing.\n  (2) If this section applies, the following people are jointly and severally liable in respect of the injury, loss, damage or destruction:\n    (a) the operator of the aircraft immediately before the impact happened;\n    (b) the owner of the aircraft immediately before the impact happened;\n    (c) if the operator of the aircraft immediately before the impact happened was authorised to use the aircraft but did not have the exclusive right to use it for a period of more than 14 consecutive days—the person who so authorised the use of the aircraft;\n    (d) if the operator of the aircraft immediately before the impact happened was using the aircraft without the authority of the person entitled to control its navigation—the person entitled to control the navigation of the aircraft.\n  (2A) Subsection (2) does not apply to a person if, immediately before the impact happened:\n    (a) the person was the owner of the aircraft; and\n    (b) the person did not have an active role in the operation of the aircraft; and\n    (c) either:\n    (i) there was a lease or other arrangement in force (whether or not with the owner) under which another person had the exclusive right to use the aircraft; or\n    (ii) another person had the exclusive right to use the aircraft and there was an agreement in force under which the owner provided financial accommodation in connection with the aircraft.\n  (3) Paragraph (2)(d) does not apply if the person entitled to control the navigation of the aircraft had taken all reasonable steps to prevent the unauthorised use of the aircraft.\n  (4) If:\n    (a) an injury, loss, damage or destruction of the kind mentioned in subsection (1) is a result of a collision or interference between 2 or more aircraft in flight; or\n    (b) 2 or more aircraft jointly cause any such injury, loss, damage or destruction;\n  this section applies in relation to each of the aircraft.","sortOrder":9},{"sectionNumber":"11","sectionType":"section","heading":"Recovery of damages without proof of intention, negligence etc.","content":"#### 11 Recovery of damages without proof of intention, negligence etc.\n\n  Damages in respect of an injury, loss, damage or destruction of the kind to which section 10 applies are recoverable in an action in a court of competent jurisdiction in Australian territory against all or any of the persons who are jointly and severally liable under that section in respect of the injury, loss, damage or destruction without proof of intention, negligence or other cause of action, as if the injury, loss, damage or destruction had been caused by the wilful act, negligence or default of the defendant or defendants.","sortOrder":10},{"sectionNumber":"11A","sectionType":"section","heading":"Contributory negligence","content":"#### 11A Contributory negligence\n\n  (1) If, in an action under section 11, a defendant proves that the injury, loss, damage or destruction was caused by, or contributed to by, the negligence of the person (the sufferer) in respect of whom the injury, loss, damage or destruction was suffered, the damages recoverable must be assessed in accordance with this section.\n  (2) The court must determine the damages that would have been recoverable if there had been no negligence on the part of the sufferer.\n  (3) The damages determined under subsection (2) must be reduced to the extent the court thinks just and equitable having regard to the share of the sufferer in the responsibility for the injury, loss, damage or destruction.\n  (4) If any case to which subsection (1) applies is tried with a jury, the jury must determine the damages referred to in subsection (2) and the amount of the reduction under subsection (3).","sortOrder":11},{"sectionNumber":"11B","sectionType":"section","heading":"Right of contribution","content":"#### 11B Right of contribution\n\n  If, because of an action under section 11, an amount of damages is paid by a person in respect of an injury, loss, damage or destruction, that person may, in an action in a court of competent jurisdiction in Australian territory, recover by way of contribution, from either or both of the following:\n    (a) any other person jointly and severally liable under section 10 in respect of the injury, loss, damage or destruction;\n    (b) any other person who caused, or contributed to, the injury, loss, damage or destruction;\n  such part of the amount paid as the court considers just and equitable.","sortOrder":12},{"sectionNumber":"12","sectionType":"section","heading":"Regulations","content":"#### 12 Regulations\n\n  The Governor‑General may make regulations prescribing all matters:\n    (a) required or permitted by this Act to be prescribed; or\n    (b) necessary or convenient to be prescribed for carrying out or giving effect to this Act.","sortOrder":13}],"analysis":{"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":false,"description":"The Act’s operative scope aligns with its stated object to facilitate recovery of damages caused by aircraft in flight (s 3, s 10). The application and limitation provisions (notably exclusion of Defence Force aircraft (s 9(2)), application to Commonwealth and certain foreign or corporate aircraft (s 9(4)), and territorial application (s 9(1), (3))) define where and to whom the object applies rather than changing that object. The Act therefore implements a targeted liability regime consistent with its stated purpose, while drawing clear boundaries about operational coverage and exceptions (see s 2 for commencement timing linked to the Convention)."},"complexity_factors":["Clear, limited subject matter focused on recoverable damage from aircraft (s 10–11) reduces complexity","Detailed operational definitions of key terms (\"in flight\" in s 5; \"operator\" in s 6) introduce factual disputes","Multiple classes of potentially liable persons and an owner exemption with conditions (s 10(2), s 10(2A)) add layering to liability rules","Strict‑liability style recovery without proof of negligence (s 11) changes usual tort proof burdens and interacts with contributory negligence rules (s 11A)","Interaction with Commonwealth and external Territories, exclusions for Defence Force aircraft, and application to certain foreign/corporate aircraft (s 8–9) create jurisdictional and applicability considerations","Regulation‑making power (s 12) leaves some implementation details to subordinate instruments"],"plain_english_summary":"What this Act changes, mechanically\n\n- The Act creates a legal rule that lets people recover damages for physical injury, death, or material damage caused by an aircraft in flight, or by things or people that fall or are dropped from an aircraft in flight (see s 10). Recovery can be pursued in an Australian court without having to prove that the defendant intended harm or was negligent; the law treats such damage as if it were caused by the defendant’s wilful act, negligence or default (s 11).\n\nOfficial stated purpose\n\n- The Act’s stated object is to facilitate the recovery of damages for certain injury, loss, damage or destruction caused by aircraft, or by people, animals or things dropped or falling from aircraft that are in flight (s 3). The summary above describes how the Act achieves that objective through its liability and recovery rules.\n\nWho is affected and who pays\n\n- Parties who can be held jointly and severally liable for such damage are: the operator of the aircraft immediately before the impact, the owner immediately before the impact, certain persons who authorised use but did not have exclusive use for more than 14 consecutive days, and a person entitled to control navigation if the aircraft was used without their authority (s 10(2)–(2)(d)).\n- An owner who did not have an active role in operation and who had leased or given exclusive use to another (or provided only finance under an agreement) may be exempt from liability (s 10(2A)).\n- Liability is strict in practical effect because claimants do not have to prove intent or negligence to recover (s 11), though a defendant can rely on the claimant’s contributory negligence to reduce damages (s 11A) and can seek contribution from other liable or causative parties after paying damages (s 11B).\n\nHow it works, step by step\n\n- Definitions set the scope: ‘‘in flight’’ is defined with distinct rules for lighter‑than‑air craft, power‑driven heavier‑than‑air craft, and non‑power heavier‑than‑air craft (s 5); ‘‘operator’’ is generally the person who uses the aircraft, with special rules when someone authorises use but retains navigation control (s 6). Employees using aircraft in employment are treated as the employer’s use (s 7).\n- The Act applies within Australian territory and to external Territories (s 9(1), (3)). It does not apply to Defence Force aircraft (s 9(2)). It explicitly applies to Commonwealth aircraft (subject to s 9(2)) and to certain foreign or corporate aircraft engaged in international or interstate trade or operating to/from Territories or Commonwealth‑acquired places (s 9(4)). The Act binds the Crown (s 8).\n- Once a claimant establishes the covered damage, courts can award damages without proof of negligence or intention (s 11). If the claimant was partly negligent, the court reduces damages to what is just and equitable (s 11A). A defendant who pays can recover a fair contribution from others who were jointly liable or who caused or contributed to the harm (s 11B).\n- The Governor‑General may make regulations needed to administer the Act (s 12). The Act’s commencement is timed by proclamation and cannot begin before Australia’s denunciation of the named international Convention takes effect (s 2).\n\nCosts, incentives and trade‑offs (source‑grounded)\n\n- Who pays: financial liability falls on operators, owners, certain authorisers, and persons entitled to control navigation in unauthorised use cases (s 10(2)–(2)(d)). The Act also permits contribution claims between liable parties (s 11B), shifting some costs among them after initial payment.\n- Incentives for private parties: operators and owners face increased legal and financial risk for damage caused by aircraft in flight (s 10 and s 11). That risk encourages precautions in operation, insurance purchasing, and contract design (for example, leasing or exclusive‑use arrangements to qualify for the owner exemption in s 10(2A)). The Act’s definitions of ‘‘operator’’ and the special rule for employer/employee use (s 6–7) affect how parties structure employment and use agreements.\n- Compliance and litigation risk: technical definitions (for example, when an aircraft is ‘‘in flight’’ under s 5, and who is the ‘‘operator’’ under s 6) can create factual disputes that courts must resolve. The exclusion for Defence Force aircraft (s 9(2)) and the specified application to Commonwealth and foreign/corporate aircraft (s 9(4)) create boundaries that can produce jurisdictional or applicability questions.\n- Administrative discretion and implementation: the Act gives the Governor‑General power to make regulations to implement the Act (s 12), which allows government to fill procedural or technical details without further primary legislation.\n\nPractical considerations and potential behavioural responses\n\n- Parties at risk of liability are likely to: obtain or adjust insurance; change leasing and financing arrangements to meet the exemption criteria in s 10(2A); implement stricter controls to avoid unauthorised use (s 10(3)); and factor this liability into pricing, contracting and ownership decisions.\n- Courts retain gatekeeping roles: they determine quantum without proof of negligence (s 11), adjust awards for contributory negligence (s 11A), and adjudicate contribution claims between liable parties (s 11B). These judicial tasks create predictable legal processes but also rely on fact‑intensive inquiries about operator status, flight status and causation.\n\nSource citations: all statutory references in this summary are to the sections of the Damage by Aircraft Act 1999 as supplied."},"kimi_summary":{"content_quality":"ok","complexity_score":4,"scope_assessment":{"changed":false,"description":"The legislation appears consistent with its original object stated in section 3 — facilitating recovery of damages for aircraft-related harm. The scope has not expanded beyond this core purpose; the detailed liability rules and constitutional limitations in section 9 are mechanisms to achieve that object rather than mission creep."},"complexity_factors":["Multiple defined terms (7 definitions in section 4, plus 'in flight' and 'operator' defined across two sections with technical distinctions for lighter-than-air vs heavier-than-air aircraft)","Nested conditional logic in liability provisions — section 10(2) establishes joint and several liability, then 10(2A) creates an exception for passive owners, then 10(3) creates an exception to that exception for unauthorised use","Cross-references to external statutes (Civil Aviation Act 1988, Air Navigation Act 1920, Constitution section 51(xx))","Constitutional limitations in section 9 requiring careful parsing of which aircraft are covered (foreign corporations, trading corporations, international navigation, inter-state commerce)","Interaction between sections 10, 11, 11A and 11B creating a layered liability regime with contribution rights and contributory negligence adjustments"],"plain_english_summary":"**What this law does:**\n\nThis Act creates a special, simplified way for people to get compensation when they're hurt or their property is damaged by aircraft or things falling from aircraft.\n\n**Key points:**\n\n- **Strict liability** — If an aircraft (or something falling from it) injures someone or damages property, the victim doesn't need to prove anyone was careless or intended harm. They just need to prove the aircraft caused the damage.\n\n- **Who can be sued:** Multiple people can be held responsible together (jointly and severally liable), including:\n  - The operator (person flying or controlling the aircraft)\n  - The owner\n  - Anyone who authorised the use but kept navigation control\n  - The person entitled to control navigation if the aircraft was used without permission\n\n- **Important exceptions:**\n  - Defence Force aircraft are completely excluded\n  - \"Passive owners\" who lease out aircraft long-term and have no operational role are protected\n  - Mental injury alone isn't enough — there must also be physical injury or property damage\n  - If the victim was negligent, their compensation can be reduced\n\n- **Geographic scope:** Applies across Australia and its external territories, covering both domestic and international flights that connect to Australian trade or commerce.\n\n**Why it matters:**\n\nAircraft accidents can cause catastrophic damage. This law removes the heavy burden on victims to prove negligence, making it easier for ordinary people to recover damages. It also spreads liability across operators, owners, and others who control aircraft, ensuring victims aren't left empty-handed if one party is insolvent or unreachable.\n\nThe Act replaced older international treaty obligations with a domestic scheme, giving Australia more control over how aircraft damage claims are handled."},"summary":{"complexity_score":5,"scope_assessment":{"changed":true,"description":"The original scope was influenced by an international treaty (the Rome Convention on Damage caused by Foreign Aircraft to Third Parties on the Surface), which this Act replaced upon Australia's denunciation of that Convention. The Act broadened scope by applying strict liability domestically to a wide range of aircraft operations under Commonwealth constitutional heads of power, while explicitly excluding Defence Force aircraft and model aircraft. The addition of the owner exemption (s.10(2A)) and the mental injury carve-out (s.10(1A)) appear to be refinements that narrowed liability compared to a purely unlimited strict liability regime one might expect from the stated object of facilitating recovery."},"complexity_factors":["Strict liability framework (no-fault) is a departure from standard negligence principles, requiring careful reading to understand scope","Multiple potentially liable parties with nuanced rules about who qualifies (operator vs owner vs authoriser vs controller)","Owner exemption clause (s.10(2A)) involves layered conditions — passive ownership, exclusive leases, financial accommodation arrangements","Definitions of 'in flight' differ across three aircraft categories (lighter-than-air, powered heavier-than-air, unpowered heavier-than-air)","Constitutional grounding (s.9(4)) references specific heads of Commonwealth legislative power (corporations power, trade and commerce, territories) which affects scope","Interaction between strict liability (s.11), contributory negligence (s.11A), and contribution rights (s.11B) requires understanding across multiple provisions","Commencement linked to Australia's denunciation of an international convention adds historical/treaty context","Mental injury carve-out (s.10(1A)) creates an exception-within-an-exception that could confuse claimants"],"plain_english_summary":"## Damage by Aircraft Act 1999\n\n### What does this law do?\nThis Act makes it easier for people to claim compensation when they are injured, or their property is damaged, by aircraft (or things falling from aircraft). Crucially, you **do not need to prove the aircraft operator was careless or did anything wrong** — the liability is automatic (called \"strict liability\").\n\n### Who does it affect?\n\n**Victims (people on the ground or in/on water):** If you are injured, killed, or your property is damaged because:\n- An aircraft (in flight or just landed) hits you or your property\n- Part of a broken/destroyed aircraft hits you\n- Something or someone falls or is dropped from a flying aircraft\n- Something happens *as a result* of any of the above\n\n...you can sue for compensation **without having to prove anyone was at fault**. This is a big deal — normally in Australian law you must prove someone was negligent (careless).\n\n**Note on mental injury:** If you only suffer psychological harm (e.g., witnessing a near-miss), you cannot claim under this Act unless you *also* suffered physical injury or property damage.\n\n**Who can be sued?** Multiple parties can be held responsible at the same time (\"jointly and severally liable\"), meaning you can pursue any one of them for the full amount:\n- The **operator** (person actually using/controlling the aircraft)\n- The **owner** of the aircraft\n- The person who **authorised** use of the aircraft (if the operator didn't have exclusive long-term control — more than 14 consecutive days)\n- If the aircraft was stolen/used without permission — the person **entitled to control** it (unless they took all reasonable steps to prevent the unauthorised use)\n\n**Owner protection:** Owners who are \"passive\" — i.e., they leased the aircraft out exclusively to someone else and had no active role in its operation — are **not liable**. This protects finance companies and lessors.\n\n### What aircraft are covered?\nMost commercial, private and corporate aircraft operating in Australian territory. The Act does **not** cover:\n- **Defence Force aircraft** (military planes have their own rules)\n- **Model aircraft** (toys/hobby drones etc.)\n\n### Can your claim be reduced?\nYes — if you were partly at fault yourself (\"contributory negligence\"), a court can reduce your compensation by a fair proportion reflecting your share of the blame.\n\n### Can those who pay seek money back from others?\nYes — if one of the liable parties pays out compensation, they can go back to court to recover a fair share from any other person who was also liable or contributed to the damage.\n\n### Why does this matter?\nWithout this Act, victims of aircraft accidents would face the very difficult task of proving the pilot or operator was negligent. This law removes that barrier, making it significantly easier and fairer for ordinary Australians to be compensated for what can be catastrophic, life-altering incidents entirely outside their control."},"issue_detection":{"absurdities":[{"type":"other","section":"Section 7 read with Section 6","severity":"medium","reasoning":"Section 7 states that where an employee uses an aircraft in the course of employment 'whether or not the employee is authorised to do so', the employer is deemed the user. Section 6 then makes the user the operator. This creates the absurd result that an employer whose aircraft is taken without permission by a rogue employee — but arguably still 'in the course of employment' — becomes the operator for liability purposes, even though section 10(3) only excuses persons who took 'all reasonable steps to prevent unauthorised use' in the narrower context of section 10(2)(d). The employer's liability is effectively absolute under this deeming chain regardless of any precautions taken, except via the limited s10(2A) owner exemption.","confidence":0.72,"description":"An employee who uses an aircraft without authorisation is deemed not to use the aircraft, making the employer the 'user' and therefore the operator — even in cases of theft or gross insubordination by the employee."},{"type":"other","section":"Section 10(1A)","severity":"low","reasoning":"The legislature clearly intended to exclude purely psychiatric claims (a sensible policy goal). However, as drafted, the threshold is satisfied if 'property owned by the person' suffers any 'material loss, damage or destruction'. A person who suffers severe PTSD from a near-miss but whose parked bicycle received a minor dent would satisfy s10(1A) and recover for the psychiatric harm. The provision fails to impose any proportionality between the qualifying physical damage and the mental injury claimed, making the gate extremely easy to open once property is involved.","confidence":0.65,"description":"The exclusion of standalone mental injury claims requires the same plaintiff to suffer both mental injury AND some other physical/material harm caused by the same aircraft impact — but the provision also extends to 'property owned by the person' suffering harm, meaning a person whose only personal experience is psychological trauma can still claim if their chattel was scratched, creating an asymmetric threshold of near-trivial materiality."},{"type":"other","section":"Section 5(1)","severity":"medium","reasoning":"Section 5(1) uses 'detached from the earth's surface' as the trigger for flight status of lighter-than-air craft. A tethered balloon is not detached — it remains connected via a tether. Section 5(3) for non-powered heavier-than-air craft separately covers aircraft 'attached to any other aircraft or machine', suggesting Parliament was aware of attachment scenarios. The absence of analogous language in s5(1) means tethered balloons — a common commercial and recreational use case — may fall outside the Act's protective scope entirely.","confidence":0.68,"description":"A lighter-than-air aircraft (e.g. a tethered balloon) is defined as 'in flight' only from the moment it becomes 'detached from the earth's surface'. A balloon that is held by a rope anchored to the ground could be interpreted as never detaching from the earth's surface, meaning it is never 'in flight' and persons injured by objects dropped from it have no strict liability remedy under this Act."},{"type":"other","section":"Section 10(2)(c)","severity":"low","reasoning":"Section 10(2)(c) imposes liability on the authorising person where the operator did not have exclusive use for more than 14 consecutive days. This means short-term authorisers face liability while long-term lessors (who arguably have less day-to-day oversight) escape it. The policy logic appears to be that a short-term borrower arrangement keeps the authoriser in a quasi-operator relationship, but the bright-line 14-day rule produces cliff-edge outcomes with no gradation.","confidence":0.6,"description":"The 14-consecutive-day threshold for the 'authorising person' liability is arbitrary and creates a perverse incentive: a person who authorises use of an aircraft for exactly 14 days retains potential liability, while one who authorises for 15 days is fully protected under the exclusive-right carve-out, reversing intuitive expectations about duration and responsibility."},{"type":"self_contradicting","section":"Section 11 read with Section 10(2)","severity":"low","reasoning":"Section 11 creates a no-fault strict liability regime in its operative part ('without proof of intention, negligence or other cause of action') but then directs that damages be assessed 'as if' the injury were caused by wilful or negligent conduct. The fiction is presumably intended to import ordinary damages assessment principles, but it risks courts importing tort defences associated with intentional or negligent wrongdoing, undermining the strict liability scheme. The deeming language is logically redundant if the only purpose is damages quantification.","confidence":0.55,"description":"Damages are recoverable 'as if the injury had been caused by the wilful act, negligence or default of the defendant' even though the Act expressly imposes liability without proof of any such conduct. This fictional characterisation serves no apparent operative legal purpose and may generate confusion about available defences."}],"contradictions":[{"severity":"medium","section_a":"Section 8 — Act binds the Crown","section_b":"Section 9(2) — Defence Force aircraft excluded","confidence":0.78,"description":"The Act explicitly binds the Crown in all its capacities (s8) but then wholly exempts Defence Force aircraft from the Act's operation (s9(2)). The Crown's capacity as operator of Defence Force aircraft is thereby excluded, creating a direct conflict between the universal binding clause and the operational exemption."},{"severity":"medium","section_a":"Section 9(3) — territorial limitation to Australian territory","section_b":"Section 9(1) — extension to external Territories","confidence":0.7,"description":"Section 9(3) limits the Act to acts, omissions, matters and things 'within Australian territory', while s9(1) extends the Act to 'each external Territory'. Whether external Territories fall within 'Australian territory' as defined by the Air Navigation Act 1920 is not self-evident, potentially creating a conflict where s9(1) purports to extend coverage to places that s9(3) may not reach."},{"severity":"high","section_a":"Section 10(2) — joint and several liability of owner","section_b":"Section 10(2A) — owner exemption","confidence":0.8,"description":"Section 10(2)(b) imposes liability on the owner of the aircraft immediately before impact. Section 10(2A) then exempts an owner who had no active operational role and had granted exclusive use to another. However, s10(2)(c) separately imposes liability on the person who authorised use where the operator lacked exclusive use for more than 14 days. An owner who authorises short-term use could simultaneously qualify for the s10(2A) exemption as a passive owner yet still face liability under s10(2)(c) as the authorising person, creating overlapping and potentially contradictory liability pathways for the same individual."},{"severity":"low","section_a":"Section 6(1) — user is operator","section_b":"Section 7 — employee use attributed to employer","confidence":0.55,"description":"Section 6(1) deems whoever 'uses' an aircraft to be the operator. Section 7 deems that when an employee uses an aircraft in the course of employment, the employer (not the employee) is the user. However, s6(2) then provides that where a person 'authorises the use' but retains navigational control, the authorising person is the operator. If an employer authorises an employee's use but retains navigational control, both s6(2) (employer as authorising controller) and s7 (employer as deemed user) point to the employer as operator, but through different mechanisms that may have different implications for the s10(2)(c) liability threshold, creating internal definitional tension."},{"severity":"high","section_a":"Section 10(3) — reasonable steps defence for unauthorised use","section_b":"Section 7 — employee unauthorised use attributed to employer","confidence":0.82,"description":"Section 10(3) provides that s10(2)(d) liability (person entitled to control navigation) does not apply if that person took all reasonable steps to prevent unauthorised use. However, under s7, an employer whose employee uses an aircraft without authorisation is deemed the user/operator, not merely the 'person entitled to control navigation' under s10(2)(d). The reasonable-steps defence in s10(3) therefore does not protect an employer caught by the s7 deeming provision, leaving employers without a due-diligence defence that Parliament apparently intended to be available in unauthorised-use scenarios."}]}},"importantCases":[],"_links":{"self":"/api/acts/damage-by-aircraft-act-1999","history":"/api/acts/damage-by-aircraft-act-1999/history","analysis":"/api/acts/damage-by-aircraft-act-1999/analysis","conflicts":"/api/acts/damage-by-aircraft-act-1999/conflicts","importantCases":"/api/acts/damage-by-aircraft-act-1999/important-cases","documents":"/api/acts/damage-by-aircraft-act-1999/documents"}}